| The TITAN ion trap facility is currently being built at TRIUMF. For the first time, it will be possible to make precision mass measurements of highly charged radioactive ions, using the ISAC radioactive beam facility. Highly charged ions (HCI) extracted from the EBIT charge breeder will have a temperature of tens of eV/charge or more, too high for direct injection into the precision Penning trap mass spectrometer. For this reason, we are currently developing an intermediate Penning cooler trap to precool the HCI prior to the mass measurement. One possible route is electron cooling, where the HCI interact with a cloud of electrons, which self-cool via the emission of synchrotron radiation in the strong magnetic field of the cooler trap. Another possibility is sympathetic cooling with initially cold protons provided by a cold ion source. In this thesis, simulations of electron and proton cooling of highly charged ions are presented, including the potentially detrimental effects of radiative, dielectronic, and three-body recombination. Cooling times are given under different initial conditions for both proton cooling and electron cooling. A test geometry for the cooler trap is put into a computer simulation code such as SIMION, and injection of ions, electrons, and protons are simulated. Our preliminary design for a cooler trap which can accommodate both electron and proton cooling is presented.;1This work was supported in part by grants from CFI and NSERC.;Using singly charged ions, the mass excess of 11Be was measured at TITAN to be 20176.936(0.531) keV, which is about 10 times better than the previous value. In addition, an ion source was built for testing some of the TITAN subsystems1. |
